Thanks to all your suggestions earlier this off-season, the FanGraphs Library has now been re-edited and rejuvinated in preparation for the 2012 season. Every stats page has been updated with new context tables — they are not year-specific anymore — and each page has been beefed up with more detailed and accurate information.

— Curious about what the formulas are for xFIP, wRAA, or SIERA? We have those, and many more.

— Wondering what the wOBA weights were for 1990, or maybe 1945? Or even 1900? Got it.

— Where can you find historical FIP constant values? We have those too.

— Need to find the league-average ISO back in 1956? Or league-average HR/FB rate in 2002? You can find links to historical, league-average leaderboards on every statistics page.

— Need a handy context chart for a specific stat that you can copy and paste into a blog article? The new context charts are easy to highlight and copy/paste from setting to setting.

There are more changes planned for the coming months — additions this time, not just edits — so stay tuned.